Before Texans quarterback Brian Hoyer went into the locker room to be evaluated for a concussion, offensive coordinator George Godsey noticed something was wrong.

The usually sharp Hoyer wasn't operating as he normally did after taking a sack in the third quarter.

"He got hit twice in the head on that play, once hit the ground, other one was just the way the sack occurred," Texans coach Bill O'Brien said. "He wasn’t functioning correctly to how we know he would normally function calling the play and receiving the play trying to communicate it to the offense."

Godsey alerted O'Brien, who spoke to Hoyer himself at the end of the series. Hoyer told O'Brien he was having trouble remembering the plays, a sign he might have had a brain injury. He also told T.J. Yates it was his turn to take over, knowing something significant was happening. O'Brien called the team's medical people over to test him for a concussion.

"I think it says a lot about him," O'Brien said. "He wants to do what’s best for the team. That’s the type of guy he is. Give a lot of credit to George Godsey. He kind of noticed it right away."

O'Brien said he hopes Hoyer will be able to play Sunday against the New York Jets. He said right now the Texans aren't planning to add a quarterback to their roster, but didn't rule it out. Yates is the Texans' only healthy quarterback on the active roster right now. Second-year quarterback Tom Savage is on injured reserve, so he isn't available. The Texans also have quarterback Zac Dysert on their practice squad and could activate him in a pinch.